刪除開頭和結尾之間的字符串部分

Question

代碼優先：

   string myString = "<at>onePossibleName</at> some question here regarding <at>disPossibleName</at>"
    // some code to handle myString and save it in myEditedString
    Console.WriteLine(myEditedString);
    //output now is: some question here regarding <at>disPossibleName</at>

我想從myString中刪除<at>onePossibleName</at> 。 字符串onePossibleName和disPossbileName可以是任何其他字符串。

到目前為止，我正在與

string myEditedString = string.Join(" ", myString.Split(' ').Skip(1));

這里的問題是，如果onePossibleName成為one Possible Name 。

嘗試使用myString.Remove(startIndex, count) -這不是解決方案。

Answer 1

根據您的需要會有不同的方法，可以使用IndexOf和SubString，正則表達式也可以解決。

// SubString and IndexOf method
// Usefull if you don't care of the word in the at tag, and you want to remove the first at tag
if (myString.Contains("</at>"))
{
    var myEditedString = myString.Substring(myString.IndexOf("</at>") + 5);
}

// Regex method
var stringToRemove = "onePossibleName";
var rgx = new Regex($"<at>{stringToRemove}</at>");
var myEditedString = rgx.Replace(myString, string.Empty, 1); // The 1 precise that only the first occurrence will be replaced

Answer 2

您可以使用此通用正則表達式。

var myString = "<at>onePossibleName</at> some question here regarding <at>disPossibleName</at>";
var rg = new Regex(@"<at>(.*?)<\/at>");
var result = rg.Replace(myString, "").Trim();

這將刪除所有“ at”標簽及其之間的內容。 Trim()調用是在替換后刪除字符串開頭/結尾的所有空格。

Answer 3

string myString = "<at>onePossibleName</at> some question here regarding <at>disPossibleName</at>"

int sFrom = myString.IndexOf("<at>") + "<at>".Length;
int sTo = myString.IndexOf("</at>");

string myEditedString = myString.SubString(sFrom, sFrom - sTo);
Console.WriteLine(myEditedString);
//output now is: some question here regarding <at>disPossibleName</at>